ATC

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MedicineEdit

Acute traumatic coagulopathy
Anaplastic thyroid cancer, a form of thyroid cancer
Anatomical Therapeutic Chemical Classification System, a WHO drug classification system
Certified athletic trainer, post-nominal letters

Air Training Command, the predecessor to Air Education and Training Command in the United States Air Force
Air Training Corps, United Kingdom, for cadets
Air Transport Command, a United States Army Air Force command during World War II
New Zealand Air Training Corps, for cadets

Academy for Technology and the Classics, a charter school in Santa Fe, New Mexico, US
Advanced Technology College, a community college in Daytona Beach, Florida, US
Applied Technology College, one of several campuses in the Utah College of Applied Technology system
Ambrose Treacy College, high school in Brisbane, Australia

Alabang Town Center, a shopping mall in Muntinlupa, Philippines
Altice (company), Luxembourg-based multinational telecoms company by Euronext stock symbol
American Technology Corporation, former name of LRAD Corporation, a sound technology company
American Thermoplastic Company, a United States plastics manufacturer
American Tobacco Campus, a former property of the American Tobacco Company in Durham, North Carolina, US
American Tractor Corporation, a 1950 manufacturer of crawler tractors which merged into Case
American Truck Company
American-Turkish Council, a business association promoting U.S.-Turkish relations
Appalachian Trail Conservancy, a United States nonprofit organization
Applied Technology Council, a nonprofit founded in 1973 which studies the effects of hazards on the built environment
Aquarian Tabernacle Church, a Wiccan church founded in 1979
Argentina Televisora Color, former name of the television network Televisión Pública (Canal 7)
Atlanta Track Club, a non-profit running organization based in Atlanta, Georgia
Atlanta Transit Company, former rail operator in Georgia, United States
Auckland Theatre Company, professional theatre company, New Zealand
Australian Telecommunications Corporation, formerly Australian Telecommunications Commission
Automobile and Touring Club for United Arab Emirates, a member of the Fédération Internationale de l'Automobile

Ancillary Terrestrial Component, a U.S. Federal Communications Commission-approved technique for using a network of cell-phone towers to supplement a Mobile Satellite Service
UK Astronomy Technology Centre, based at the Royal Observatory in Edinburgh, Scotland, part of the Science and Technology Facilities Council
Athletic Trainer Certified, a healthcare professional board certified in athletic training
Automatic taxonomy construction, a branch of natural language processing, which applies software programs to generate taxonomical classifications from a body of texts.
Average total cost, in economics
Automatic tool changer, a mechanism allowing CNC machines to switch cutting tools without operator intervention.
Alternate technical concept, in engineering and construction.
USENIX Annual Technical Conference, an annual peer-reviewed conference
ATC, a codon for the amino acid isoleucine

Advanced transportation controller, a standardization effort as part of the United States Department of Transportation's Intelligent transportation system
All-terrain cycle, a type of all-terrain vehicle
Alvarado Transportation Center, an intermodal transit center in New Mexico
American Truck Corporation, a USA importer and/or assembler of Tatra and Kraz trucks.
Armored Troop Carrier (LCM), used in the Vietnam War
Automatic traffic counter, see traffic count

Air traffic control, a service provided to aircraft by ground-based controllers
- Air traffic controller, people who expedite and maintain a safe and orderly flow of air traffic in the global air traffic control system
Air Tanzania Corporation, the former state-owned airline of Tanzania

Automatic train control, a safety system for railways
Automatic and Track Control, a tokenless form of safeworking on single rail lines used in Victoria, Australia

Armacham Technology Corporation, a fictional technology developer in the video game F.E.A.R.
Artist trading cards, individual fine art miniatures
'Any to Come', a type of conditional bet; See Glossary of bets offered by UK bookmakers

Acoustic Transducer Company, a British loudspeaker and electronic equipment manufacturer
All Things Comedy, a comedy company and podcast aggregate
All Things Considered, a news show on National Public Radio in the United States
Against the Current (band), an American pop rock band
Argentina Televisora Color, former name for Televisión Pública in Argentina
A Touch of Class (band), a pop music group from Germany and the UK (1999–2003)
Agreement on Textiles and Clothing, a World Trade Organization regulation for trade in textiles and garments
Audio Tele-Conference
ATC (belay device), a type of belay device for rock climbing
Authorization to Carry, a permit issued in Canada to carry Restricted firearms and Prohibited handguns